2025 OCR GCSE Biology B Twenty First Century Science Paper 4 and Mark Scheme Combined (J257/04 Depth in Biology (Higher Tier)

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This resource contains the 2025 OCR GCSE Biology B (Twenty First Century Science) Paper 4: Depth in Biology (Higher Tier) combined with the official mark scheme for specification J257/04.
It provides complete coverage of the depth content assessed in the Higher Tier Biology B exam, making it an essential tool for students aiming for the top GCSE grades.

What’s included?

Full 2025 Paper 4 exam (Higher Tier)
The accompanying official OCR mark scheme
Clear examiner guidance showing how each mark is awarded
Challenging, in-depth questions designed to test deeper biological understanding
Coverage of key depth topics such as:
- Advanced cell biology and biological molecules
- Genetics, inheritance and modern biology
- Health, disease and the immune system
- Organism-level biology (plants and animals)
- Metabolism, photosynthesis and respiration
- Ecology, biodiversity and environmental interactions
- Required practicals and higher-level scientific skills

Ideal for:

Students preparing for Higher Tier GCSE Biology B
Teachers planning lessons, homework or mock exams
Independent learners needing structured practice
Improving exam technique and understanding OCR marking criteria
Checking answers and building deeper conceptual knowledge

Specifications

Author	Proficient Academic Tutor
Published	05 Dec 2025
Included files	PDF
OCR GCSE Biology B Twenty First Century Science J257/04 Depth in Biology Higher Tier Biology GCSE Biology 2025 OCR Biology B 2025 Biology Paper 4 OCR exam paper OCR mark scheme